Korean J Parasitol.  2014 Oct;52(5):527-529. 10.3347/kjp.2014.52.5.527.

The First Case of Capillaria hepatica Infection in a Nutria (Myocastor coypus) in Korea

Affiliations
  • 1Department of Laboratory Animal Medicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 151-742, Korea. pjhak@snu.ac.kr
  • 2SNBL USA, Ltd., 6605 Merrill Creek Parkway, Everett, Washington, USA.
  • 3Environmental Resources Research Department, National Institute of Environmental Research, Incheon, Korea. kiljh@korea.kr
  • 4Department of Veterinary Parasitology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 151-742, Korea.
  • 5Department of Ecological Conservation Research, National Institute of Ecology, Seocheon, Korea.

Abstract

This study reports the first case of Capillaria hepatica infection in a nutria in Korea. Ten nutrias, captured near the Nakdong River, were submitted to our laboratory for necropsy. White-yellowish nodules were found in the liver of 1 of the nutrias at necropsy. Histologically, the lesions were granulomatous, and infiltrations of lipid-laden macrophages, eosinophils, and several multinucleated giant cells were observed. The lesions consisted of numerous eggs and necrotic hepatocytes. The eggs were lemon-shaped and had polar plugs at the ends of both long sides. The eggs were morphologically identified as those of C. hepatica. Worldwide, C. hepatica infection in nutrias is very rare. Nutrias are a kind of livestock, as well as wildlife; therefore, an epidemiological study for parasitic infections needs to be conducted.

Keyword

Capillaria hepatica; nutria; liver
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